<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>背景的固定和滚动</title>
    <style>
        div{
            width: 300px;
            height: 1000px;
        }
        .box1{
            background-image: url(img2/1.jpg);
            background-attachment:fixed;
            background-repeat:no-repeat ;
            background-color: yellow;
        }
        .box2{
            background-image: url(img2/2.jpg);
            background-attachment:fixed;
            background-repeat:no-repeat ;
            background-color: red;
        }
    </style>
</head>
<body>
    <div class="box1"></div>
    <div class="box2"></div>
</body>
</html>